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Black USB-A to 5.5 mm x 2.1 mm DC booster cable with inline module, one metre long

HETAI Digital Technology Co.,Ltd

HETAI Digital Technology Co.,Ltd USB Power Booster Cable 5V to 9V 12V DC 5.5*2.1mm

SKU CH-PY5Z-GKRRC

USB cable steps 5 V input to 9 V or 12 V at 0.8–1 A for routers and small DC devices

  • Connector TypeMicro USB to USB A
  • Converts USB 5 V to 9 V or 12 V for router backup
  • Powers 5.5 × 2.1 mm DC devices from a power bank
  • Supplies up to 1 A at boosted voltages
  • 1 m cable length gives flexible placement
  • Works with routers, USB lights, fans and mini speakers

Power Booster Cable

The HETAI Digital Technology Co.,Ltd USB Power Booster Cable converts a standard 5 V USB source into a selectable 9 V or 12 V DC output through a 5.5 mm by 2.1 mm barrel plug. It is intended for users who need to run low‑voltage networking gear or small appliances from a power bank or USB charger. The compact inline module handles the step‑up conversion without an external adapter.

Capacity and Headroom

The boost module delivers 9 V or 12 V at up to 1 A, which is sufficient for typical routers, USB lights, fans or 5 V mini speakers. The 5 V pass‑through variant simply forwards the input voltage for devices that do not require conversion. Output current drops if the USB source cannot sustain the required power, so high‑draw loads will exceed the cable’s capability.

Upgrade Path

This cable replaces a dedicated wall wart or proprietary power brick for compatible 5.5 × 2.1 mm devices, letting a single power bank serve multiple roles during outages or mobile use. The jump is worthwhile when portability and backup runtime matter more than maximum continuous current. Fixed‑voltage equipment needing more than 1 A at 9 V or 12 V is not served by this solution.

Highlights

  • Converts USB 5 V to 9 V or 12 V for router backup
  • Powers 5.5 × 2.1 mm DC devices from a power bank
  • Supplies up to 1 A at boosted voltages
  • 1 m cable length gives flexible placement
  • Works with routers, USB lights, fans and mini speakers

Specifications

Connector TypeMicro USB to USB A

Questions about this item

Will the 5.5 mm by 2.1 mm DC plug fit the power input on my older router?

The cable ends in a 5.5 mm outer diameter, 2.1 mm inner diameter male barrel plug, which matches the common router power jack size.

How can I confirm the booster is delivering 9 V or 12 V after I plug it in?

Measure the DC plug with a multimeter; the 9 V version should read about 9 V at 0.8 to 1 A, and the 12 V version about 12 V at the same current range.

Does the package include a power bank or only the converter cable?

Only the USB-to-DC booster cable is supplied; a 5 V USB power source such as a power bank or charger must be provided separately.

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